Design experimental device

Experiment 35 Design experimental device

How to set up a design experiment that can not only improve students 'independent design ability but also improve students' practical ability is an important subject in current experimental teaching. This design experimental device uses a nine-hole plug-in board as a carrier, including an experiment main body composed of a chassis, a nine-hole plug-in board, a component plug-in board, an experimental component, a transparent component box, etc., as well as a signal source, special power supply, data acquisition instrument . Through the connector connection of transparent components, the problem of fragility of the connecting line is solved; the experimental components are placed on the component board and then placed in the overall chassis, which solves the problems that the experimental components are easily damaged and difficult to manage. Equipped with complete experiment handouts, the experiment content of each model can be expanded with each other, or can be matched separately as needed, and users can expand the experiment content by themselves; multiple competition experiments can be completed on this device, so it is very suitable for physics experiment teaching .

Basic experiments that can be completed

1. Opening of DH-SJ1 type: measurement of volt-ampere characteristics of components;

The steady-state characteristics of the RLC circuit;

The first-order and second-order transient characteristics of the RLC circuit;

Electric meter modification experiment;

Rectifier filter circuit;

Voltage regulator circuit experiment;

Chaotic circuit experiment, etc.,

2. The DH-SJ2 type has a basic sensor experiment, including measurement, design, and application experiments of 10 basic sensors;

3. DH-SJ3 type photoelectric sensor experiment, including measurement, design and application experiment of 6 photoelectric sensors;

4. DH-SJ5 type temperature sensor experiment, including measurement, design and application experiment of 8 temperature sensors.

Examples of scalable experiments

1. Experiment of integrated voltage stabilizing circuit; 2. Experiment of voltage stabilizing and steady current power supply; 3. Experiment of thyristor voltage regulation and dimming circuit;

4. Operational amplifier circuit experiment; 5. Electric meter modification experiment; 6. Hysteresis loop experiment;

7. Logic gate circuit experiment; 8. Waveform generator circuit experiment, etc.